Fig. 12From: Colorimetry to assess the visual impact of dust deposition on mosaics at sheltered archaeological sitesGraphs showing the spectral reflectance (ρm0 ρm1 and ρm2) and spectral differences (Δρ(1), Δρ(2)) of the selected tesserae after each cleaning process (m0 m1 and m2): a ochre (2R), b white (2B) and c black (2N) tesseraeBack to article page